What are the three responses from a vaccine?

Primary response:

Programs the immune system to remember a particular disease agent by allowing it to "practice" on a weakened or killed version of the pathogen

Body may have a fever during this process

secondary response:

If a pathogen invades the body following a vaccine, the immune system can respond in a faster and greater magnitude than the primary response, which results in the creation of more antibodies to fight the pathogen and more memory cells to fight it in the future

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